Tissue holder



FIG. 1 is a front elevational view of a tissue holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side view thereof, the opposite side being a mirror image of the side shown; and,

FIG. 4 is a rear elevational view thereof. 

The ornamental design for a tissue holder, as shown and described. 